ELECTRICAL VEHICLES CLUB

  Sodium-ion batteries are revolutionizing the energy storage industry with their sustainable, high-performance characteristics. Here’s why they’re a game-changer: 🌟 Key Features: Eco-Friendly: Utilizes abundant and non-toxic sodium, minimizing environmental impact. Cost-Effective: Lower raw material costs compared to lithium-ion alternatives. High Safety: Superior thermal stability, reducing the risk of overheating and fires. 📊 Specifications of our 2.9V 230Ah Sodium-Ion Cell: Typical Capacity: 230Ah Operating Voltage: 2.9V Internal Resistance: ≤0.5mΩ Operating Temperature: Charging: 0°C to 55°C Discharging: -40°C to 60°C Cycle Life: 6000 cycles @ 90% Depth of Discharge (DOD) Weight: 5.2kg 💡 Why Choose Sodium-Ion? Sustainable: Sodium is abundantly available and less resource-intensive than lithium. Stable Performance: Operates efficiently across a wide temperature range, ensuring reliability in various conditions. Long Lifespan: High cycle life means fewer replacements and lowe...

 

 

 The Alkaline battery gets its name because it has an alkaline electrolyte of potassium hydroxide, instead of the acidic ammonium chloride or zinc chloride electrolyte of zinc-carbon batteries. Above, you see pictures of two types of cells that Panasonic makes. The ones on the top are AA type Alkaline cells. The ones on the bottom are AA type Zinc Carbon cells. Alkaline cell Zinc carbon cell Based on the tables above, the Zinc Carbon cell is lighter, but has a lower shelf life. They both are AA type and have a nominal voltage of 1.5V, but there is one point of comparison that is not listed in the table above. That is Capacity. The Capacity of a AA cell depends on the load connected to it. For example, if you discharge the AA cell at 1A, it might discharge for say 1 hour. Now what if you discharged it at 0.5A, will it discharge for 2 hours? The answer is no, the effective capacity at 0.5A will be slightly higher, so the cell will be able to supply for a little more than 2 hours. Thi...

   Range estimation is an important parameter for putting an Electric Vehicle on the road. Certification tests require disclosure of estimated range at different conditions, and more importantly users of the vehicle make daily decisions about their driving based on the amount of range left as calculated by the vehicle itself. A lot of parameters can be considered to increase the accuracy of range estimation, but it is important to form a starting point In the default configuration above, using the formula we get a runtime of 0.6 hours for a 100kWh battery connected to a 100kW motor. Here are some things to note here. The first question may arise, 100kWh pack, connected to a 100kW motor; shouldn't that run for 1 hour? You need to take into account motor and transmission efficiency, which means that all the energy from your battery pack doesn't make it to the motor, some of it gets lost along the way, mostly as heat. Another thing to note is that the calculation for runtime is d...

 When you hear about Lithium-ion battery safety, Thermal runaway is a very commonly talked about term. The purpose of this article and the attached video is to explain Thermal runaway in an intuitive way, so that the fear around it is a little less and the understanding a little more. As the name suggests, thermal runaway is a negative cyclic reaction that leads to a high temperature and pressure environment inside a Lithium-ion cell. This in its most extreme case can cause a fire, although many times the thermal runaway cycle is broken much before that through safety features built inside the cell and in surrounding electronics like the Battery Management System. Thermal runaway takes place in multiple stages. It needs to start with a trigger, which can either be a rule violation caused by the product or improper use of the product or in some cases an internal cell failure as well. Once the first stage of thermal runaway in activated, the reactions that take place inside the cell ...

 

  Torque is a measure of rotational force, and it is a critical parameter for electric vehicle motors. In an electric motor, torque is directly proportional to the current flowing through the motor windings, and it is also affected by the magnetic field generated by the motor. In an electric vehicle, torque is particularly important because it determines the vehicle's acceleration and pulling power. Higher torque means faster acceleration and better performance, particularly in heavy vehicles or during uphill driving. Electric vehicle motors have the advantage of being able to produce maximum torque from zero RPM, unlike traditional internal combustion engines that require a certain RPM to reach maximum torque. This means that electric vehicles can provide smooth and instant acceleration, which contributes to their overall driving experience. Furthermore, electric vehicle motors have the ability to control torque output very precisely, which enables advanced features such as regene...

 Comparing a high-speed electric vehicle and a heavy-weight carrying capacity electric vehicle is an interesting exercise because these two types of EVs have different design requirements and performance characteristics. In terms of the motor, a high-speed electric vehicle requires a motor with a high power output and a high rotational speed to achieve high speed. Typically, high-speed EVs use a high-voltage AC motor, which can produce a high power output while maintaining high efficiency. The motor may also be paired with a high-performance gearbox or direct-drive system to optimize the vehicle's speed and acceleration. On the other hand, a heavy-weight carrying capacity electric vehicle requires a motor with high torque output, which is essential for carrying heavy loads and climbing steep grades. Typically, these vehicles use a low-speed/high-torque AC motor or a DC motor, which can provide high torque output at low RPMs. The motor may also be paired with a multi-speed gearbox o...

Electric Road Systems A solution for electric vehicle range and critical metal shortages.                 In this article, let's learn why electric road systems are a much better solution.                    These allow vehicles to charge as they are driving, giving electric vehicles unlimited range, including heavy trucks. All roads don’t need to be fully electrified since vehicles are still expected to have batteries. There just needs to be charging zones along major highways and busy bottlenecks in cities. This is the only current electrification system suitable for heavy trucks. Although heavy trucks are only a small percentage of the vehicles on the road, they produce about one-third of the emissions because they travel long distances at sustained power outputs. Electric roads also make a lot of sense for private cars because they allow smaller batteries to be used, greatly reducing vehicle co...

 In a traditional internal combustion engine vehicle, the battery plays a different role than in an electric vehicle. In an internal combustion engine vehicle, the battery is primarily used to power the vehicle's electrical system, including the lights, radio, and other accessories. The battery is also used to start the engine by providing power to the starter motor. The battery in a traditional internal combustion engine vehicle is charged by the vehicle's alternator, which is driven by the engine. When the engine is running, the alternator generates electrical power that is used to charge the battery and power the vehicle's electrical system. When the engine is not running, the battery provides power to the vehicle's electrical system and accessories. The battery in a traditional internal combustion engine vehicle is not designed to be discharged and recharged repeatedly like a battery in an electric vehicle. The primary function of the battery in an internal combusti...

About Electric vehicles: What is EV: An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes charged by solar panels, or by converting fuel to electricity using fuel cells or a generator). General layout History of an EV: Electric motive power started in 1827, when Hungarian priest Ányos Jedlik built the first crude but viable electric motor, which used a stator, rotor, and commutator; and the next year he used it to power a small car. In 1835, professor Sibrandus Stratingh of the University of Groningen, in the Netherlands, built a small-scale electric car, and sometime between 1832 and 1839, Robert Anderson of Scotland invented the first crude electric carriage, powered by non-rechargeable primary cells. American blacksmith and inventor Thomas Davenport built a toy electric locomotive, powered by a primiti...